It is in fact the wrong place.

Is this a vibe coded npm app that’s purpose is to avoid reading and understanding your own compose files?

I saw in another comment your lsblk output and yes I see the LUKS partition spans the whole disk.

So yes, the commands you listed should be sufficient. It will extend the decrypted logical volume to use the remaining free space of your volume group.

I realize now i may have been confused as you didn’t specify everything.Is the LUKS volume created right on the disk on a raw partition?

Edit: meant this to be a comment reply, not a post reply.

You can’t resize the filesystem without first resizing the crypted volume.

You would expand this LV. Expand the crypted volume. The decrypt the volume and expand the underlying filesystem.